I think nwools is going to try intensively Minera with fews hardware to test something, hope we can ask him his impressions and suggestions soon.
I will be putting Minera through the ringer and giving michelem feedback on any hardware that should work with BFGMiner but isn't.
That said I cooked a Pi over the weekend (not the tasty kind and nothing to do with Minera) so I'll be waiting on a new Pi to arrive Monday before I can get going.